P
US6960550B2ExpiredUtilityPatentIndex 61

Catalyst systems for high melting thermoplastic elastomeric α-olefin polymers and plastomers

Assignee: UNIV LELAND STANFORD JUNIORPriority: Jun 14, 1997Filed: Mar 18, 2003Granted: Nov 1, 2005
Est. expiryJun 14, 2017(expired)· nominal 20-yr term from priority
Inventors:WAYMOUTH ROBERT MKRAVCHENKO RAISABENDIG LARRY LMOORE ERIC JMYERS CHARLES LQUAN ROGER WERNST ANDREAS B
C08F 10/00C08F 4/65912C08F 110/02C08F 110/06C08F 210/06Y10S526/943C08F 4/63912C08F 210/16
61
PatentIndex Score
3
Cited by
38
References
11
Claims

Abstract

A metallocene catalyst system component for polymerization of olefins includes at least one 2-arylindenyl ligand substituted on the 1-position by a substituted or unsubstituted alkyl, alkylsilyl, or aryl substituent of 1 to 30 carbon atoms.

Claims

exact text as granted — not AI-modified
1. An unbridged metallocene catalyst system component for polymerization of olefins which includes at least one 2-arylindenyl ligand which is substituted on the 1-position by a substituted or unsubstituted alkyl, alkylsilyl, or aryl substituent of 1 to 30 carbon atoms. 
     
     
       2. A metallocene catalyst system component of  claim 1  in which a 2-arylindenyl ligand is substituted on the 1-position with an alkyl group. 
     
     
       3. A metallocene catalyst system component of  claim 1  in which a 2-arylindenyl ligand is substituted on the 1-position with an aryl group. 
     
     
       4. A metallocene catalyst system component of  claim 1  in which a 2-arylindenyl ligand is substituted on the 1-position with an alkylsilyl group. 
     
     
       5. A metallocene catalyst system component of  claim 1  in which a 2-arylindenyl ligand is substituted on the 1-position with a methyl group. 
     
     
       6. A metallocene catalyst system component of  claim 1  which includes a transition metal selected from a Group 3, 4, or 5 transition metal, a lanthanide, and an actinide. 
     
     
       7. A metallocene catalyst system component of  claim 6  in which the transition metal is selected from titanium, hafnium, vanadium, and zirconium. 
     
     
       8. A metallocene catalyst system component of  claim 1  which contains two 2-arylindenyl ligands substituted on the 1-position. 
     
     
       9. A metallocene catalyst system component of  claim 1  comprising a bis(1-methyl-2-phenylindenyl)zirconium dichloride. 
     
     
       10. A metallocene catalyst system component of  claim 1  comprising (pentamethylcyclopentadienyl)(1-methyl-2-phenylindenyl)zirconium dichloride. 
     
     
       11. A metallocene catalyst system component of  claim 1  comprising (pentamethylcyclopentadienyl)(1-methyl-2-phenylindenyl)dimethyl zirconium.

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